20230128 Minero Canyon First Descent

TRs for the San Gabriel Mountains.
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Taco
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Post by Taco »

I've been looking up at Minero Canyon for years from East Fork Road. It descends from Upper Monroe Truck Trail, which starts off the very top of GMR, and ends down near the confluence of East Fork and the upper reservoir. Just south of Minero Canyon is Venedo Canyon, which Amanda pointed out we had done the first descent of 11 years ago to today, as in we did Minero on the 28th and Venedo on the 29th. Pretty cool.

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Here's a view of the canyon from Upper Monroe Truck Trail, on the way home yesterday. Much the same view is available from East Fork, but with less detail, so the 2-300ft of elevation loss visible from afar made me wonder if there was a big rappel in there. It looked interesting on Google Earth as well, so I filed it away in my head as one of the 'easier' local canyons that I wanted to explore.

Fast forward to today and Amanda was gonna be around to do some sort of adventure hike, canyon, or whatever. I decided this would be the target of our efforts this time, considering the recent rainfall would make it real pretty in there and not completely dry, amongst other factors floating around in my head. It's not a long canyon, and the approach and hike out are easy on a dirt road, so we met up at 9am to drive up and begin the day.

We parked at the big dirt turnout for Lower Monroe, which is a fun and popular local mountain bike route. We turned north and hiked down Upper Monroe to a point we decided looked best to begin the canyon. Sometimes you do the entire canyon from the real logical starting point, but often times locally this just means bushwhacking with no rappels or anything of value for quite some time. It's all bushwhacking around here as you all know very well so we kept hiking a little bit further before dropping in on a small gully feeding into the canyon. The bushwhacking was thick from the get go, and I got a stick right in my eyeball early on as a sort of welcome back by the canyon gods. I had my ESEE Junglas big knife, similar to a machete but much sturdier and shorter, which carries more momentum and works better against our dry wood out here. It usually makes short work of the bushwhacking we have here and is a bit better for small tasks as well (plus it's really cool and I'm a knife nerd). We did the usual crawling underneath dense brush as well as walking atop a false floor of interwoven vines and nonsense, and eventually it cleared up just a little and we could stand up and take a breath.

We met our first rappel a bit later...

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Maybe 50ft or so of rope used. We brought two 200ft ropes. If I had the money I'd buy a 200ft pullcord to save a lot of weight and space. We try to keep things clean and conserve webbing and links as much as we can without compromising safety, so for the first anchor Amanda set up a CEM retrievable anchor, which uses only the rope, with three twists that surround a bight. Tension on the rappel line keeps the rope in place, and when one reaches the ground one pulls the retrieval side which pops the knots, and it all comes down. One must be careful to maintain proper tension and one should take care to keep the path of the rope free of snags, otherwise it would be easy for the rope to get stuck while pulling it down, as it comes down in a big loop. We had no such issues, and used this excellent technique later on. We had my old Canyonero rope and a C-IV on this trip. The Canyonero is very tough and has been used on many first descents showing minimal wear despite hard use for over a decade. It is very stiff, however, and handles as such unless it becomes saturated with water. The C-IV is much softer but also surprisingly durable, and we use that for the CEM system, as it is much more malleable. I wouldn't want to use the Canyonero for such things as it either may not hold the loops, or it would hold them so well it may not come down.

We continued down, bushwhacking at times but mostly enjoying the middle part of the canyon. I rarely take detailed notes on canyons, just noting approximate number of rappels as well as their length. In total we had 8-10 rappels, several downclimbs which perhaps should be rappels for some parties, and the longest single rappel was about 150ft.

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That last photo shows the initial drop down what I figured would be the biggest rappel. I believe it still was, but not 200+ feet as somewhat 'expected'. When you see contour lines all smooshed together on a map or look at Google Earth data showing a loss of x amount of feet, you can either hit a massive rappel or cliff or find smaller ones bunched together. This was the latter. There was a short section of slab downclimbing beyond:

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Having never been in this place before, I was enjoying the perspective. Everything felt pretty big around here. The local peaks were high enough above us and at just the right distance to feel so far away from home. It had a feeling similar to the western parts of Kings Canyon, before one sees any limestone or the granite big walls near Road's End. You can see Upper Monroe low center of shot, our hike out.

Several more rappels up to maybe 100ft followed. The possible 300ft rappel was a series of downclimbs and shorter rappels which looked larger from far away.

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In this photo Amanda is rappelling off a small bush I wasn't super confident of. This is a short 40ft or so rapp to a small pool and cool little stance. A 60ft or so rappel is immediately afterwards, just to the right in the photo. We rigged our next rappel off the small Sycamore tree using the CEM method. I am above her with our second rope in case that Sycamore is dead. Since it's winter, the tree has no leaves so we don't know if its alive and solid or dead and would pull out. An acquaintance of ours rappelled off a tree elsewhere, which pulled out and he fell, shattering his ankle. His leg had to be amputated below the knee. It's fresh in my mind along with all the sketchy things I've done in the past so I am much more careful nowadays. The tree was healthy and solid, so I came down with the second rope and we continued on.

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There are some real pretty sections of canyon such as above, with tiny ferns to include Maidenhair Ferns, mosses, Dudleya growing out of cracks everywhere, and we saw one salamander and one decent size frog. A beautiful hidden place in the mountains no other humans are likely to have seen. We only saw a couple metallic balloons!

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Here Amanda rappels down one of the last drops. Shortly thereafter the technical section ends and we hike out a short distance to the road.

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Here's a log with incut steps, likely placed by the residents of Fire Camp 19. It was solid, but very slippery. An easy way down. The road was just behind me in this shot and we took our gear off and started the hike out. The road is an easy hike but the mind wanders with such ease, often settling on thoughts of minor discomfort and a desire to be done already.

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As one can see the water level is extremely high. That's the entrance to Burro Canyon range just right of center. Look how much water is under the East Fork bridge.

We got back to the car about an hour after dark and headed down to The Hat in Glendora for a big meal. We were both sore, having not done this sort of thing in quite some time. Canyoneering in the San Gabriels lesser traveled canyons requires crawling, digging, cutting, climbing, twisting ankles and getting poked in the face by all manner of plants, getting slashed at by those annoying thorny bushes, Poison Oak, falling through rotten logs, all the fun stuff. My back is still sore and I had a tiny chunk of meat ripped off the pad of one of my fingers which produced a surprising amount of blood which got all over the ropes and my pack. A great day doing an old favorite past time. I've got a couple more first descents on the radar, the next of which is extremely short and easy but quite cool looking from the road. This is a great time to do it as the temps are wonderful and there's enough water to make things fun but not overwhelming in any way.

Hope you guys are all having a nice time, getting out and enjoying the weather. Go do stuff. Remember, it's gonna be mega hot in no time and you'll be kicking yourself for not doing whatever it is you like out there. The world is full of excuses and comfort is hard to abandon. Just go do stuff.
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dima
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Post by dima »

That's awesome! I didn't realize that there were any first descents left in any named canyons around here. Are there many more? Any particular reason this one wasn't visited yet? Looks fun
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Sean
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Post by Sean »

I hiked down that road to Minero several years ago and thought the canyon would be a brushfest. Thanks for confirming. Did your stiff rope soften up when it got soaked with blood?
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Taco
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Post by Taco »

Dima, there are a handful left. Nobody does these first descents except Alden and I, and maybe the odd character here or there. Chris Brennan and company did it before us. Who knows who will do it next.

Sean it certainly did. The rope went out there blue and came back purple.
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Gene
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Post by Gene »

Has anyone done this sort of trip down Persignger canyon? I've been a short way up from the bottom but did not have the time to explore further and possibly discover the mine/home that Persinger supposedly established in the canyon.
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AW~
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Post by AW~ »

Sean wrote: I hiked down that road to Minero several years ago and thought the canyon would be a brushfest. Thanks for confirming.
Haha...I got you beat. I was at my car and figured that the farmers have done every canyon in that area.
I went to another route, and....yup, someone had been there. Even back then, they were doing the canyons 'clean'.
But this guy ultimately chose to go and not to grow.
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Taco
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Post by Taco »

OH CRAP! AW is the other guy! How could I forget to mention you? I beg forgiveness. I offer parcels of land I have taken from the salamanders.

Surprisingly enough there was no black hose in this canyon. GMR has been mostly free of it. I find it in nearly every ditch on 39 though.

Have you done Horse Cyn down to East Fork Rd, AW? I was gonna give it a go.

Gene, I haven't done Persinger but mapped it on Google Earth. It looks non-technical, with one section of exposed rock/waterfall a lil more than 1/3 the way down so it's not on my list. It would be a good candidate for something to raft out of, which sounds fun. The canyon that parallels it directly south is Steele Taco, which was really cool the first time we did that. Second time had a shitload of deadfall from a recent wind 'event', so much so that some rappels became downclimbs on fallen Alder trees. Venedo is the one north and that one was pretty neat, about on par for the region.

The ones on Rattlesnake and that whole area are pretty interesting as the rock is more exposed and slightly more solid so the rapps are longer with less high foliage. Ran into an active grow there once.
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Gene
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Post by Gene »

Taco wrote: OH CRAP! AW is the other guy! How could I forget to mention you? I beg forgiveness. I offer parcels of land I have taken from the salamanders.

Surprisingly enough there was no black hose in this canyon. GMR has been mostly free of it. I find it in nearly every ditch on 39 though.

Have you done Horse Cyn down to East Fork Rd, AW? I was gonna give it a go.

Gene, I haven't done Persinger but mapped it on Google Earth. It looks non-technical, with one section of exposed rock/waterfall a lil more than 1/3 the way down so it's not on my list. It would be a good candidate for something to raft out of, which sounds fun. The canyon that parallels it directly south is Steele Taco, which was really cool the first time we did that. Second time had a shitload of deadfall from a recent wind 'event', so much so that some rappels became downclimbs on fallen Alder trees. Venedo is the one north and that one was pretty neat, about on par for the region.

The ones on Rattlesnake and that whole area are pretty interesting as the rock is more exposed and slightly more solid so the rapps are longer with less high foliage. Ran into an active grow there once.
Just make the passage well before or after the 4:00 PM water surface reading, just saying.

BTW, many years ago I visited the UFS office in Glendora. In one of the offices, they had a map of the Forrest on which someone had hand drawn a building and a mining symbol in Personger Canyon. Unfortunately, I never got a chance to visit the area.
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AW~
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Post by AW~ »

Taco wrote: OH CRAP! AW is the other guy! How could I forget to mention you? I beg forgiveness. I offer parcels of land I have taken from the salamanders.
Surprisingly enough there was no black hose in this canyon. GMR has been mostly free of it. I find it in nearly every ditch on 39 though.
Have you done Horse Cyn down to East Fork Rd, AW? I was gonna give it a go.
The ones on Rattlesnake and that whole area are pretty interesting as the rock is more exposed and slightly more solid so the rapps are longer with less high foliage. Ran into an active grow there once.
A simple drone can recon those canyons for farming nowadays.

I havent done the entire entire Horsey...as a training spot for technicals, we did Horsey+Capes. And both of those was well-visited before me.
Upstream of the second Horsey falls its gruesome...

You can make amends by observing my declaration of no-beta exploration zone below Twin Peaks until WF Bear:)
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Taco
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Post by Taco »

I'm never doing the Bear Twin thing again. Gross. Had enough. I won't go there and tell everyone. Starting to feel that way about everything, just took time. Good idea with the drone.

Cape looks cool, just the bottom. I am mostly interested in that last rapp on Horse just above EF Rd, cause it's pretty and I'm a sucker for that.
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Taco
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Post by Taco »

Gene, ;) Will do. Gonna eyeball Persinger a bit from GMR now.
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tekewin
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Post by tekewin »

Beautiful canyon and first descent. And scary.
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